Question

A man has 640 in the denominations of one
rupee, five rupee and ten rupee notes. The
number of each type of notes are equal. What
the total number of notes he has?
(a) 60 (b) 150 (c) 90 67120​

Answer 1

Answer:

(d) 120

Step-by-step explanation:

Let the number of 1 rupee notes be x.

Amount of 1 rupee notes = x

Number of 5 rupee notes = x

Amount of 5 rupee notes = 5x

Number of 10 rupee notes = x

Amount of 10 rupee notes = 10x

According to Question,

x + 5x + 10x = 640

16x = 640

x = 640 ÷ 16

x = 40

Hence, total number of notes = 120